MAX98400A Evaluation Kit
Table 1. Jumper Descriptions (U1)
Table 2. Jumper Descriptions (U2)
JUMPER
SHDN_1
TEMP_1
MONO_1
LIM_1
SHUNT
POSITION
1-2*
Open
Open*
1-2
Open*
1-2
1-2*
2-3
DESCRIPTION
Normal operation; U1 SHDN =
DVDD (external logic-high)
Shutdown; U1 SHDN = GND
Thermal foldback enabled; U1
TEMPLOCK = unconnected
Thermal foldback disabled; U1
TEMPLOCK = GND
Stereo mode; U1 MONO is
pulled to GND by R102
Mono mode; U1 MONO is pulled
to VS1
Limiter disabled; U1 LIM_TH =
VS1
Limiter enabled in PVDD tracking
mode; U1 LIM_TH = GND
JUMPER
SHDN_2
TEMP_2
MONO_2
LIM_2
SHUNT
POSITION
1-2*
Open
Open*
1-2
Open*
1-2
1-2*
2-3
DESCRIPTION
Normal operation; U2 SHDN =
DVDD (external logic-high)
Shutdown; U2 SHDN = GND
Thermal foldback enabled; U2
TEMPLOCK = unconnected
Thermal foldback disabled; U2
TEMPLOCK = GND
Stereo mode; U2 MONO is pulled
to GND by R202
Mono mode; U2 MONO is pulled
to VS2
Limiter disabled; U2 LIM_TH =
VS2
Limiter enabled in PVDD track-
ing; U2 LIM_TH = GND
Limiter programmable mode; U1
Limiter programmable mode; U2
Open
LIM_TH is determined by R103,
R104, and R105
Open
LIM_TH is determined by R203,
R204, and R205
JU104
JU105
GAIN1_1
GAIN2_1
1-2*
Open
1-2*
Open
1-2
2-3*
Open
1-2
2-3
Open*
Single-ended input mode; U1
INL- = GND
Differential input mode; U1 INL-
is not connected to GND
Single-ended input mode; U1
INR- = GND
Differential input mode; U1 INR-
is not connected to GND
U1 G1 = VS1
U1 G1 = GND
U1 G1 is not driven
U1 G2 = VS1
U1 G2 = GND
U1 G2 is not driven
JU204
JU205
GAIN1_2
GAIN2_2
1-2*
Open
1-2*
Open
1-2
2-3*
Open
1-2
2-3
Open*
Single-ended input mode; U2
INL- = GND
Differential input mode; U2 INL-
is not connected to GND
Single-ended input mode; U2
INR- = GND
Differential input mode; U2 INR-
is not connected to GND
U2 G1 = VS2
U2 G1 = GND
U2 G1 is not driven
U2 G2 = VS2
U2 G2 = GND
U2 G2 is not driven
* Default position.
* Default position.
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